IMAP Functions
PHP Manual

imap_headers

(PHP 4, PHP 5, PHP 7)

imap_headers — Returns headers for all messages in a mailbox

Description

array imap_headers ( resource $imap_stream )

Returns headers for all messages in a mailbox.

Parameters

imap_stream

An IMAP stream returned by imap_open().

Return Values

Returns an array of string formatted with header info. One element per mail message.

IMAP Functions
PHP Manual